Beer-faucet



(No Model.)

G. H. WALKER.

. .BEER FAUGET. No. 471,630.

Patnted Mar. 29, 1892 FIG-l.

ventor.

UNITED STATES PAT NT OFFICE.

GEORGE H. WALKER, OF CINCINNATI, OHIO.

BEER-FAUCET.

SPECIFICATION forming part of Letters Patent No. 471,630, dated March 29, 1892. Application filed S p mber 1891- Seriall Io. 406,120 (No model.)

To all whom it may concern.-

Be it known that I, GEORGE H. WALKER, a citizen of the United States, residing at Oincinnati, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in Beer-Faucets; and I do hereby declare the following to beafull, clear, and exact description of the invention,reference being had to the annexed drawings, which form part of this specification.

This invention relates to those beer-faucets which are provided with special tubes that.

ed, that secures the utmost accuracy in the operation of the inlet-valve, as hereinafter more fully described.

In the annexed drawings, Figure l is an enlarged axial section showing my improved valve applied to the air-inlet tube of a beerfaucet, the valve being open. Fig. 2 is a plan of the under side of the valve proper, its inclosing box or shell being omitted. Fig. 3 is a Vertical section of the Valve in its closed condition.

A represents a portion of the sliding airtube of any approved form of beer-faucet, and B is a cylindrical shell or case secured to the exposed end of said tube and communieating therewith in the manner shown. This shell, case, or box B usually has an annular gasket 0 at bottom, upon which rests the valve proper, the construction of the latter being more clearly seen in Fig. 3. Here D represents a ring, E a flexible diaphragm, and F an unyielding disk, said members D E F being of practically the same diameter and being so cemented together as to hold said diaphragm at its margin, but leave its central portion free to bend inwardly. The diaphragm E has a slit or other opening 6 near one-side of the ring D, while the disk F has an opening f near the opposite side of said ring; but these openings may be other- Wise disposed, provided they are not in the same plane.

G is a cap screwed into the shell B and having a central orifice g.

From the above description it is evident that as long as there is any material pressure within the'beer-keg the diaphragm E will be forced upwardly or against the unyielding disk F, thereby affording a double seat, one at the slit e and the other at the orifice f, as seen in Fig. 3. Consequently this double seat of the valve ordiaphragm effectually excludes air from the keg; but the very instant there is any tendency to a vacuum within the vessel the central portion of said diaphragm will be forced away from the disk F, as seen in Fig. 1. Air will then enter through the three inlets g f 8, thereby destroying the vacuum and inducing a free flow of beer. It is evident this valve can be applied to various other forms of venting appliances, the screw-threaded cap G enabling the readyinspection of the device at any time.

I claim as my invention- As a new article of manufacture, a valve consisting of a flexible diaphragm E, perforated at c and having its margin permanently secured between a lower ring D and an upper disk-seat F, perforated at f, said perforations e f being in different planes, all as herein described, and for the purpose stated.

In testimony whereof I affix my signature in presence of two witnesses.

GEORGE H.- WALKER.

WVitnesses:

JAMES .H. LAYMAN, A. B. DUNLAP. 

